package com.itheima.service.impl;

import com.alibaba.dubbo.config.annotation.Service;
import com.itheima.constant.MessageConstant;
import com.itheima.dao.MemberDao;
import com.itheima.dao.OrderDao;
import com.itheima.dao.OrderSettingDao;
import com.itheima.entity.Result;
import com.itheima.pojo.Member;
import com.itheima.pojo.Order;
import com.itheima.pojo.OrderSetting;
import com.itheima.service.OrderService;
import com.itheima.utils.DateUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.List;
import java.util.Map;

/**
 * 代码使我快乐 Administrator on 2019/12/8.
 */
@Service(interfaceClass = OrderService.class)
@Transactional
public class OrderServiceImpl implements OrderService {

    @Autowired
    private OrderDao orderDao;

    @Autowired
    private MemberDao memberDao;

    @Autowired
    private OrderSettingDao orderSettingDao;

    @Override
    public Result order(Map map) throws Exception {
//        1.检查用户所选择的日期是否有预约设置，如果没有则无法预约
        String orderDate = (String) map.get("orderDate");
        OrderSetting orderSetting = orderDao.findByOrderDate(DateUtils.parseString2Date(orderDate));
        if (orderSetting == null){
            return new Result(false, MessageConstant.SELECTED_DATE_CANNOT_ORDER);
        }
//          2.检查用户预约是可预约人数是否已满，如果已满则无法预约
        int number = orderSetting.getNumber();
        int reservations = orderSetting.getReservations();
        if(reservations >= number){
            return new Result(false,MessageConstant.ORDER_FULL);
        }

//        检查用户是否在重复预约
        String telephone = (String) map.get("telephone");
        Member member = memberDao.findByTelephone(telephone);
        if(member != null){
            Integer memberId = member.getId();//用户id
            Date date = DateUtils.parseString2Date(orderDate);//预约日期
            Integer setmealId = Integer.parseInt((String) map.get("setmealId")) ;//套餐id
            Order order = new Order(memberId, date, setmealId);
            List<Order> list = orderDao.findByCondition(order);
            if(list != null && list.size()>0){//如果集合中有数据说明用户在重复预约
                return new Result(false,MessageConstant.HAS_ORDERED);
            }
        }else {
//            如果member没有数据 则自动将用户添加为会员
             member = new Member();
             member.setName((String) map.get("name"));
             member.setPhoneNumber(telephone);
             member.setIdCard((String) map.get("idCard"));
             member.setSex((String) map.get("sex"));
             member.setRegTime(new Date());
             memberDao.add(member);
        }
//      更新当前已预约人数
        Order order = new Order();
        order.setMemberId(member.getId());
        order.setOrderDate(DateUtils.parseString2Date(orderDate));
        order.setOrderType((String) map.get("orderType"));
        order.setOrderStatus(Order.ORDERSTATUS_NO);
        order.setSetmealId(Integer.parseInt((String) map.get("setmealId")));
        orderDao.add(order);
//      设置已预约人数+1
        orderSetting.setReservations(orderSetting.getReservations()+1);
        orderSettingDao.editReservationsByOrderDate(orderSetting);
        return new Result(true,MessageConstant.ORDER_SUCCESS,order.getId());
    }

    @Override
    public Map findById(Integer id) throws Exception {

        Map map = orderDao.findById4Detail(id);
        if (map != null) {
            Date orderDate = (Date) map.get("orderDate");
            map.put("orderDate",DateUtils.parseDate2String(orderDate) );
        }

        return map;
    }

}
